Question: When did George R. R. Martin receive the Nebula Award for Best Novelette?
Paraphrase: George R. R. Martin received the Nebula Award for Best Novelette when?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q181677 p:P166 ?s . ?s ps:P166 wd:Q936683 . ?s pq:P585 ?value}